1982-02-01

Spacecraft Model Verification Using Swept Sine Data Analysis 821479

Spacecraft sinusoidal vibration test data is analyzed, using overlap processing, to compute transfer functions and to determine frequencies, damping, and modal amplitudes. Results are compared with results obtained from random vibration test data and show excellent agreement. The overlap processing method, therefore, is acceptable for performing system identification computations from typical swept sine vibration test data. Use of alternative reference point for computation of transfer functions is discussed.

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